Kinetics of gold nanofilms on oxide materials dispergation under annealing on air

 
B.Kostyuk,
  
S. Dukarov,
 
A. Kryshtal
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Adhesion of Melts and Brazing of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2010, #43
http://www.materials.kiev.ua/article/509

Abstract

It is investigated kinetics of dispergation, which proceed in gold nanofilms by thickness of 100 nm put onto a surface alumina ceramics, leykosapphire and quartz glass as a result of them annealing in air at temperatures 800-1000 °С during various time. It is revealed, that kinetics of dispergation has practically identical character for all three investigated oxides and it consist of rather slow films fragmentation as result of annealing at 800 °С, which is considerably accelerated at rise in temperature, especially in a range 900-950 °С. As a result of the further annealing at temperatures 950-1000 °С there is only acquisition by films fragments more-less rounded form.


ANNEALING, DISPERGATION, GOLD NANOFILMS, KINETICS, OXIDE MATERIALS